Antiskidding device



-May 5,1925. f 1,536,074

W. D. CHASE ANTISKIDDING DEVICE Filed Feb. 25, 1919 2 sheets-sheet 2 OOINVENTOR.

WMQMW ATTORNEY.

l 'fy WfWM/ Patented May 5, 1925.

UNITED STATES PATENT OFFICE.

WARREN I). CHASE, OF HARTFORD, CONNECTICUT.

ANTTsKInnINe nnvron.`

` Application med February 25, 1919. serial no. 279,03.

clamp, peripherally spaced on the tire of` the wheel. 'The specialpoints in view and the objects sought, and accomplished, are to providesuch device which will be universal in application, which will beentirely between the planes passing through the edges of the sides ofthe rim or some other peripherally extending part of, or carried by, thewheel radially outside of the anchoring devices, in order to protect thede` vice 'against injury by striking the curb or obstructionin theroadway, sides of ruts and the like; and to mount the securement oranchoring means per se in such manner that it willbe located between twoadjacent spokes of the wheel, will extend trainsversely of the wheel soas to receive the pull of the respective traction elements from oppositeSides of the wheel so that the strain of thechain will be borne directlyby the material of the connecting or securing or anchoring means per se,guarding the clamp device as a whole against being subjected toinjurious strains "or sudden pulls `and stresses tending to loosen thesecuring bolts or Snap theplates of the clamp; and to have no part ofthe anchoring or securing means per Se extending beyond the planescoinciv dent with the lateral faces of the spokes of the wheel, so thatthese anchoring means per se will be located well inward from the sidesof the wheel and protected by the felly, etc., from injury by curbing,sides of ruts and the like; and also to so mount the device that it willextend peripherally of the wheel, will be clamped against the lateralsides of the spokes; to So construct, mount and arrange` the clamp ordevice that in its operative position it will distribute the Strain ofthe pull of the traction elements equally between the spokes the felly;to so form the device that each clamp member willengage the lateralfaces of ltwo adjacent spokes andthe `face of one of said spokes atright angles thereto,`in order that# the -spokes and sothat anybuckingtendency radially of the wheel, will be entirely offset; and to soconstruct, `mount and larrange the clamps or device asa unit so that'Iin f its operative position on the wheel it will distribute the strainAof the puller jerk of the traction elements equally between" the spokesand the felly; and to so form the plates making up the device that butone master pattern or die sary, the identical will be neces#` in form,Size and strength.

these clamps may get good `purchase, on`

plates making up the clamp being fIn the accompanying drawings, in whichy only the preferred formclamp is shown by way of illustration, p Y

` Figure l represents `al viewy partly .in section, of a Segment of atruck wheel, looking from the hub toward the rim, with a device appliedtothe spokes thereof iii-accordance with my invention;` p l Figure 2represents adetail perspective lwiew of oneA ofthe clampplates ormemers; l

Figure 3 represents al sideelevation of a portion of` a wheel with oneofthe devices applied thereto with the chains passing around the fellyVandtire; p Figure `Il, a side elevation. of one ofthe plates of theclamp;` T

`Figure 5,"a sectional view through the fellyland tire of the wheel,with a chainv applied and thespokes broken away;

Figure 6, an end view of one ofthe memA bers of the clamp, with thekeeper or guard or emergencypin in normal position;

Figure 7, asimilar view with the keeper open; p l y l Figure 8, a'sectional view on the line 8"8 of Figure 6; Y j l Figure `9, a Sectional,view on the line 9--9 of Figure 7, the keeper beingshown in sideelevation; l

Figure 10, a sectionalview on the line 10-10 of Figure 8 with theterminal links of the chains applied to the hooks, .the keeper beingshown in elevation; and

Figure 1l, a` sectional view on the line ll`ll-of Figure'9,iwith`theterminal links Btiv of the traction chains in different intermediatepositions of applications, the keeper beine' shown 1,11 yelevation-Referring noyv in detail `to the drawings: A represents the tire, B therim, C the felly and D the spokes of the Wheel, and E represents thecross chains Vor other type of antiskidding or traction elements passingtrans-y verselx7 around the tire A.

The clamp or device .isconiposed of two plates, each plate having a longarm 1, provided :with @we 0,1" .111e1-e y1 11111is1t1161111111 Slots s3,and f1 .$11011 ,.2111112 hev111eef1-f111se 4 .from ,which vrtwo hoolrs 5project toward eaeh` other and have therltne 1111 ediaeeney to delimit Ya single opening or passage for the inserten, e1-.v tl1drewel,therethrough of .the resp'eetive :terminal zperteee ef e traction.element Lf or the l.application to, vor removal from, the respective,hooks of said ter111111a1rport0nev''llhisarmffl isralso provided Withalug .6 having l an internally iscrew threaded perfo- 112111011'7 ,eed.which ie Subetantiallv Parallel te., a11de1te11dS-11.tl1ee.e111e.;,df11feet1e11festhe flange e, -whjeh Hanse has e 101e 8 )largerthan the perforation 7, andie1fe1ere-blv het 111e'v theeame a-:is-

`A P111.erkeeieerfhavieg a-se1eW-tl1-1ea-1ed Portion .l and e111enlarged bead `11 --S Q Leibe inserted,.Serevvthr-eaded end tiret,through hole 8 and screwed through perforation 7 until ,the ,threads ,of.portion v 10 are free from the threads x in .Y the `Wall of .said 1:perforation, .when Said rn.111 is free` te .be `rslipped through lnguntilthehead 11 strikes-the adjacent portion of the lug. .6,\vhen anangularA @2111.12 1ste fbe..21np1ed 'te the threaded portion y10, theextreme end :thereof being then upset. `This'head 12J Will preferablyhave a ,tapered @bread .that it .Will 'flee locled ,sin 'position and:can ,have =no `nuove- Inent on tlie pin 9 after `the endpfathelatter isupset.

.llhis pin` 9g as ,shown-in thel drawings A is Iso arranged that it willbe infsuclra position with relation tothe tips-of the tivohooks 5 thataterminal linl, ,or,porti/onof a traction chain ycannot bepassed .betweenwthe respective tips |of 'tliefhooks j and Jsaid pin9so long ,as ,saidpinremains in normal. position.

In arranged position. on the Wheel the: lug 6 ,will be rac-Il iallynearer thejhyub than-,the flange 5, the outer Vface of the latter, willextend Substantially .parallel e-Hdvllbe against the inner peripheral,face of the felly, Vandthe'pin 9 will by reasonof-the centrifugal forceand jarring action .caused by the travel of the Wheel over theroald'surface, be, automatically,turned uptight and held tight innormalpositioinfas has' been ascertained by 5 actual test.

The slots,3,are .of lsuch v size .A and so Alocated in the arms 1 thatthey extendlongitudinally of.l the., armslandm in .arranged position onthe smallest size standard truck Wheel the slots of the two armsregister so that 1two ordinary bolts 13 may be passed throught-hepairsof slots 8 anddrawn tight to pull the arms 1 up tight against thelateral facesof the spolresLthe two plates being in reversed relation soAthat the arm 2 of oneplatepengages the transverse face of the spokeengaged by the other end of the arm 1 of the other `plate saidtransverse face of the first mentioned spoke being on the other side ofthe spoke fronrthe bolts 13.

In applying to `the nextlarger size of Wheel theclainp will belongitudinally 9X- tended `so lthat the slots .3 lwill overlap in orderthat bolts 13 may be passed there thronghbetween thesspoles anddraWntight as above described.

ln.thelargesusiaeof.wheel the clamp is still further :longitudinallyextended so that the overlapping of the :slots is .a little less, but.leaves suiticient lroom for ithe kinsertion of theboltsl,

The dimensions of ,the spolves differ `to the greatest .e; rtenttransverselylofthe Wheel and r,this .is easily compensated for nsingbolts 1,3 of different lengths gto" correspond with lthe transversedimension of the .,spole.

This provides for universal application to all .standard .1 truclr.Wheels kof t d iiferent" sizes as to diameter of vWheeler crosssectional dimensionsof thelspokes. i 'A .The armsrl and@ofeaehplate.Willhave their outer edges, intheir ,applied relation formedenla continuons arccQrreSpQnding to the cu-rveof the innerperipheral4face of the fellyl of thesinallest sizeof vvvlieelso as toengagengainstthe saineat all points, but the: difference of the ,arcbetween theslnallest and largest wheel will Anot be great' and will .notbe an `objectienable* feature when the clamps are applied` to thelargestwheel. vlt. is not necessary that .thebolts 13 should engage theEtransverse .faces of the ,adj acent spokes; itispossible thatthe-y, may,butv it is preferable that they should (not. as .the closer they are tothe` spokesfthe hin-der of accessthey are,` and for this reason theslots 3 have .been .especially provided, allowing the bolts to be`positioned with' relation to thespolres at the pointsivhere they lWillbe most accessible. i

rIt is not necessary that the slots 3 .exactly register when the clampis .applied tothe s mallest-vn'heel, they may register or overlap ineither:` direction, but it is necessarythat the slots S should registeror -suiiiciently overlap, as appliedtothe lextreme sizes-lof wheels, sothat bolts 13 `may V'be inserted thronglrthe.respective pairs of slots3. i

The pin 9 `is preferred as a guard vor closurey means becauseitmaybeused as an emergency securing means, but any lother suitable4 closuremay beused thativillpro vide this .einergency feature, or so as the FOUgeneral arrangement is concerned this closure may be entirely dispensedvwith, or some other closure that will close the opening or passagebetween the tips of` the hooks 5 may be used.

Having thus described my invention, What I claim as new and desire tosecure by Letters Patent is:

A device to secure atraction element to a Wheel comprising platesadapted to be applied to the spokes thereof and means for securing suchplates in such position, one

of said plates being provided With an arm engaging one of said spokes onits transverse face farthest from said securing means, said arm havinganchoring means for the terminal portions of the traction element, saidanchoring means receiving pull from the traction element in substantallopposite directions transversely of the Whee the device having no partextending beyond planes passing through the side edges of an outerperipheral part of the Wheel.

WARREN D. CHASE.

